Jordan engine



July so, 1935. A. L'BRAY 2,009,985

JORDAN ENGINE Filed Sept.;5, 1934 Z'Sheets-Sheet 1 July 30,1935;

A. 1.. BRAY JORDAN ENGIN E Filed Sept. 5, 1934 2 Sheets-Sheet 2 PatentedJuly 30, 1935 UNITED STATES PATENT OFFICE JORDAN ENGINE ApplicationSeptember 5, 1934, Serial No. 742,854

1 Claim.

The invention relatesto plug and shell assemblies for Jordan engines andits principal object is to provide simple means whereby the removableshell may be secured to the core centers of the plug in such way as toinsure maximum holding without the hazard of shearing while admitting ofseparation with the minimum of time and labor.

The nature, characteristic features and scope of the invention morereadily will be understood from the following description taken inconnection with the accompanying drawings, forming a part hereof,wherein:

Figure 1 is a broken front view of the improved plug in completeassembly.

Fig. 2 is a longitudinal central section of the same.

Fig. 3 is a section on line 33 of Fig. 1.

Fig. 4 is a broken away view of a complete plug assembly, showing amodified construction.

Fig. 5 is a longitudinal central section of Fig. 1.

Fig. 6 is a section on line 66 of Fig. 4.

With particular reference to Figs. 1 to 3, inclusive, the improvedconstruction includes core usual shaft 3, and having peripheral taperedsurfaces 4 and 5, respectively, which respond to the desired conicalshape of the plug.

A separate shell 6, exteriorly formed as desired, is interiorly formedwith tapered surfaces 1 and 8 for accurate wedging interfit with thetapered surfaces 4 and 5 of the core centers. The inner surface of theshell, near the larger end thereof, is formed or provided with hooks 9,the bills of which project toward the smaller end of the shell. Shelltightening or draw bolts ill, with rings or eyes II, are provided toremovably engage the hooks 9, the bolts passing through radial webportion ll of the core center I, and cooperating with nuts [2 to admitof relative wedging action of the shell and core centers for tighteningpurposes.

centers l and 2, fixed in spaced relation on the In order to relieveshearing on the bolts under operating conditions, the spider or end wallII is formed with projections I3, defining channels [4, to receive lugsIS on the shell which serve to solicit angular stress.

In the illustration shown in Figs. 4-6, inclusive, the shaft [6 isprovided with core centers I1 and I8. The removable shell i9 is formedor provided with tapered surfaces 20 and 2| to cooperate with taperedsurfaces 22 and 23 on the respective core centers [1 and [8. In thisillustration the shell is provided with lugs 24, adapted, when the shellis in applied position, to fit between spaced abutments 25, projectingfrom the radial web portion of the larger core center. Cap screws 26pass loosely through the wall of the core center and have threadedconnection with the lugs 24, or with appropriate fillings 21. In thisform the relative arrangement of the lugs 24 and abutments 25 iseffective to eliminate shear on the cap screws 26. g

It will be understood that the tightening of the bolts I0 in the onecase, and of the cap screws 26 in the other case, serves to draw theshell onto the tapered surfaces of the core centers in 25 properlycentered relation and to compel a wedging cooperation of the shell andcore centers. Thus, practically a unitary, rigid construction isprovided which, at the same time, admits of convenient and simpledisconnection of the shell 30 when necessary for replacement or otherpurposes. 1

Having described the claimed is:-

A Jordan plug comprising plug centers, a shell removably fitted to saidcenters, lugs on theshell and lugs on one center constituting abutmentsto relieve shear, and means carried by a center and having threadedconnection with the shell lugs and effective to establish wedgingaction.

invention, what is ALFRED L. BRAY.

